#linuxcnc Logs

May 05 2020

12:15 AM XXCoder: grill with mystery metal alloy why not
01:37 AM net|: https://github.com/tecan/EcoCoin/blob/master/qtCoin/usbswitch.png
03:23 AM Deejay: moin
04:51 AM JT-Cave: morning
05:50 AM * Loetmichel had a slight "pucker" moment this morning. Put a 60mm wood saw blade into the CNC router and milled a few slots in an enclosure. Which was only fixed with two strips of double sided tape. Wasnt sure the 4mm Polycarbonate Shield would hold if something had gone Fubar... -> http://www.cyrom.org/palbum/main.php?g2_itemId=17800&g2_imageViewsIndex=1
07:33 AM elmo40: Loetmichel: still have all your digits?
07:35 AM elmo40: i think the polycarbonate would hold up. not like the part would fly hard. the blade is so thin it wouldn't grab it too well.
07:40 AM JavaBean: i don't know about that. table saws have a potential for nasty kickback, yeah the blade on that might be a bit thicker but the mechanics are quite similar
07:50 AM elmo40: if there is play in the panels then they would surely absorb the impact of the part being pushed into it. if the door is super rigid then maybe they would crack but the part would still not go through it. the blade, either. not much mass and very bulky compared to an endmill.
08:25 AM Loetmichel: elmo40: sure (have all my digits)
08:44 AM elmo40: :-)
09:01 AM Choscurano is now known as Choscura
09:19 AM Loetmichel: JavaBean / elmo40 : its this Sawblade: http://www.cyrom.org/palbum/main.php?g2_itemId=17298&g2_imageViewsIndex=1
09:20 AM Loetmichel: and this machine: https://www.youtube.com/watch?v=QTIEvURkxO8 (the second one in the vid)
09:35 AM Loetmichel: and no, the Polycvarbonate shield is not fixed, it has a hinge at the top and a lip that holds it closed on the bottom end
10:20 AM Loetmichel: hmm, anyone knows what grit to use for a diamond grinding wheel for a D-bit grinder? D64?
11:47 AM Loetmichel: *haha* you know you are in germany if you stop at a traffic light with your BMW and there are 4 more BMWs in front of you... then you look in the rearview mirror: two more BMWs... then you look on the right lane: 5 mercs, then 3 VWs (couldnt look further back) :-)
11:48 AM Loetmichel: just happened on my way home from work ;)
12:28 PM methods_: Hey can any GD&T gurus help me with a question
12:28 PM methods_: https://imgur.com/a/KubjNF7
12:29 PM methods_: in the circled feature control frames what is the diameter dimension referring to in the lower control frame
12:32 PM methods_: ahhh nm figured it out
12:32 PM methods_: it's the hole spacing tol
12:34 PM methods_: the holes on the other side positional tol
01:03 PM gregcnc: there is a difference between the 2x and 6x call outs
01:06 PM gregcnc: methods the lower callout 2x define the position of back side hole, in the 6x it also defines position in relation to the other holes in the group as well as the back side hole
01:11 PM methods_: ah ok didn't catch that
01:23 PM jymmmm: gregcnc: how is the holes orientation defined? top, bottom, etc
01:25 PM dirty_d: any of you have one of those chinese water cooled spindles?
01:25 PM dirty_d: those can be run at low rp right? It's the air cooled ones that have to be above 8000rpm?
01:25 PM dirty_d: low rpm*
01:31 PM Rab: dirty_d, I do not have an informed answer to your question. But aren't they basically the same motor, with crap torque at the low end? I believe the air is pressurized externally, so doesn't depend on spindle speed.
01:34 PM dirty_d: Rab, the air cooled spindles have a fan inside, not a compressed air line
01:34 PM dirty_d: I'm just gonna get a water cooled one I think
01:38 PM Rab: dirty_d, after a little research, I see that you're correct.
01:40 PM dirty_d: I wish I had just bought two ball screws for Y when I built my machine
01:40 PM dirty_d: I can't even get them on ebay now because of corona
01:51 PM gregcnc: they are also 8kRPM min
01:52 PM gregcnc: jymmmm it's a tube with holes through both walls
01:55 PM jymmmm: gregcnc: ah ok
03:25 PM Deejay: gn8
03:37 PM -!- #linuxcnc mode set to +v by ChanServ
04:05 PM CaptHindsight: Retesting old samples, French doctors found that a patient had the virus on Dec. 27,
04:06 PM CaptHindsight: gregcnc: makes sense since a friend nearby here was in the hospital for "never seen before viral pneumonia" in mid Dec
04:29 PM acer_ is now known as _unreal_
04:30 PM _unreal_: ve7it, I guess I'm going to tie all the TP14 pins the disable pins for the amps to a single relay. if grounded the the amps are turned off
04:30 PM _unreal_: elmo40_, my current working machine is threaded and works just fine
04:30 PM _unreal_: my new machine is threaded and will likely do the same
04:57 PM dirty_d: threaded?
05:44 PM Tom_itx: dirty_d, threaded rod?
05:44 PM Tom_itx is now known as Tom_L
05:47 PM methods_: https://www.youtube.com/watch?v=YEBAWhfNEB8
06:10 PM ve7it: _unreal_, you might consider putting toggle switches on the enable lines... then when testing, you can disable all but 1 servo
06:15 PM flyback is now known as carl_sagan
06:16 PM carl_sagan is now known as flyback
06:27 PM dirty_d: if g1 is modal then shouldn't `g1 *newline* x0` not produce an error?
07:09 PM Tom_L: dirty_d, it's probably expecting a coordinate on the G1 line
07:09 PM Tom_L: could do g1 x1
07:09 PM Tom_L: x3
07:09 PM Tom_L: and that would be fine
07:09 PM dirty_d: Tom_L, yea I know, it's just weird to me
07:09 PM Tom_L: it needs a place to g1 to
07:10 PM dirty_d: I don't think it does though
07:10 PM dirty_d: g1 should just put it in feed mode
07:10 PM dirty_d: then when an axis word changes, it would feed there
07:10 PM dirty_d: ive been reading this https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=823374
07:10 PM dirty_d: I guess I'm relly that bored
07:11 PM Tom_L: oh
07:46 PM methods_: did you give it a feed rate?
07:47 PM methods_: if it wasn't given a feed it may kick out an error
07:48 PM methods_: i don't know if linuxcnc would just apply some default feedrate though and not throw an error
07:48 PM methods_: and i'm too lazy to go fire up the mill and check
07:49 PM methods_: dirty_d:
07:58 PM tiwake: methods_: hi
07:58 PM methods_: hey what's up
07:58 PM tiwake: been really busy
07:58 PM methods_: that's a good thing
07:58 PM tiwake: worked 12 hours today
07:58 PM methods_: ouch
07:59 PM tiwake: again tomorrow
07:59 PM methods_: wow
07:59 PM methods_: crankin out some hours
07:59 PM tiwake: the place I work at now (its been a year now) has been keeping me on a fair amount of overtime since before christmas
08:00 PM tiwake: like the last 6 months... lol
08:00 PM methods_: wow sounds like they need to hire some people
08:01 PM methods_: good way to end up burnt out workin like that
08:01 PM tiwake: its a problem industry wide really
08:01 PM tiwake: who is looking for a job that is good at machining and/or programming?
08:02 PM tiwake: (nobody, they are all already working)
08:02 PM methods_: yep
08:02 PM methods_: job security
08:03 PM tiwake: maybe I can talk the owner into hiring two people and letting me train them in the ways of the ways
08:03 PM methods_: or just take a 2 week vacation
08:03 PM tiwake: I only have one week... heh
08:04 PM tiwake: I did take a week or something over christmas though, unpaid
08:04 PM methods_: one week should be enough to get the point across
08:04 PM tiwake: honestly I need the monies to get shit paid off
08:04 PM tiwake: so I'm not too concerned about that
08:05 PM methods_: as long as it's working for you then roll with it
08:05 PM methods_: but if you get paid more you don't have to work as much
08:05 PM tiwake: more time to myself would be more nice, but I need more shit paid off too
08:59 PM _unreal_: ve7it, nice I dea
08:59 PM _unreal_: I did a DIP switch setup :)
08:59 PM _unreal_: just for that :)